3-turn pots

[archiver]

Posted by Stephen at 02/24/2001 3:21 PM EST


Other on team #122, NASA Knights, from Grafton High School (Robotics team is at NHGS) and NASA.



My team is looking for a 3-turn potentiometer for our robot. As of now, our pot is a 10-turn, and we could get better accuracy with a 3-turn (since that's about all we need). We can't seem to find any 3-turn pots that are also 100k, as per the rules; they seem to stop selling 3-turn pots at 50k. I was just wondering if anyone knew where to get some 3-turn, 100k pots. Thanks for your time.

[archiver]

Posted by Lloyd Burns at 02/24/2001 10:17 PM EST


Engineer on team #188, Woburn Robotics, from Woburn Collegiate and TorDistSchoolBrd, ScotiaBank. OntPwrGen, Enbridge.


In Reply to: 3-turn pots
Posted by Stephen on 02/24/2001 3:21 PM EST:



: My team is looking for a 3-turn potentiometer for our robot. As of now, our pot is a 10-turn, and we could get better accuracy with a 3-turn (since that's about all we need). We can't seem to find any 3-turn pots that are also 100k, as per the rules; they seem to stop selling 3-turn pots at 50k. I was just wondering if anyone knew where to get some 3-turn, 100k pots. Thanks for your time.

Can you use a pulley to "gear up" to use a 10-turn ?

There's a 100k linear 4-turn radial-lead trimmer from Bourns, on page 405 of the current DigiKey(.com) catalog. It's a P.C. mount, and has a Philips head ('X') adjuster, but might be adaptable. I'm not a big fan of planetary drive, though, (slippage as it wears) and I think most of the 1

[archiver]

Posted by Lloyd Burns at 02/25/2001 1:50 AM EST


Engineer on team #188, Woburn Robotics, from Woburn Collegiate and TorDistSchoolBrd, ScotiaBank. OntPwrGen, Enbridge.


In Reply to: Re: 3-turn pots
Posted by Lloyd Burns on 02/24/2001 10:17 PM EST:



: There's a 100k linear 4-turn radial-lead trimmer from Bourns, on page 473, _not_405_, of the current Feb-Apr 2001 DigiKey(.com) catalog. It's a P.C. mount, and has a Philips head ('X') adjuster, but might be adaptable.

The 3339W has a square package, is based on a 5/16" D round package with axial leads. About US$8 each.